Difference between revisions of "OSBYTE &9B"

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(Write to VULA, not to 6845.)
 
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OSBYTE &9B (155) - Write to Video ULA palette register and RAM copy
 
OSBYTE &9B (155) - Write to Video ULA palette register and RAM copy
  
     This call places X into register 1 of the 6845, and updates the RAM copy
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     This call writes X to the Video ULA palette register and updates
     (Electron OS only)
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    the RAM copy. The RAM copy is of little use as there are 16 entries
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    in the Video ULA palette and the RAM copy will only hold the last
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    value written to it. The RAM copy of the palette is in the VDU
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    workspace at &035F-&037E.
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     Electron OS:
 
     Completely ignored, performing an RTS immediately
 
     Completely ignored, performing an RTS immediately
  
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[[User:Jgharston|Jgharston]] 22:11, 26 May 2009 (UTC)
 
[[User:Jgharston|Jgharston]] 22:11, 26 May 2009 (UTC)
 +
[[User:Jgharston|Jgharston]] ([[User talk:Jgharston|talk]]) 07:44, 30 November 2016 (UTC)

Latest revision as of 08:44, 30 November 2016